/*
 * Copyright 2007 Rob Nielsen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.proxymatic.apps.data.handlers;

import com.googlecode.proxymatic.apps.data.BackedByMap;
import com.googlecode.proxymatic.core.AbstractMethodHandler;
import com.googlecode.proxymatic.core.BuildtimeContext;
import com.googlecode.proxymatic.core.MethodInvoker;
import com.googlecode.proxymatic.core.ProxyBuilder;
import com.googlecode.proxymatic.core.RuntimeContext;
import com.googlecode.proxymatic.core.util.ReflectUtil;

import java.lang.reflect.Method;

public class BackingMapAccessMethodHandler extends AbstractMethodHandler implements MethodInvoker {
    private static final Method GET_BACKING_MAP_METHOD = ReflectUtil.getMethod(BackedByMap.class, "getBackingMap");

    public MethodInvoker getInvoker(Method method, BuildtimeContext context, ProxyBuilder proxyBuilder) {
        if (method.equals(GET_BACKING_MAP_METHOD)) {
            return this;
        }
        return NOT_HANDLED;
    }

    public Object invoke(Method method, Object[] parameters, RuntimeContext context) throws Throwable {
        return context.getImplementationObject(0);
    }

    public Class[] getExceptionTypes() {
        return NO_DECLARED_EXCEPTIONS;
    }
}
